Deepwater Dungeon has many moving bodies of water and spiked walls.
- Green Star 1: After the moving bodies of water, the player will need the cat form to reach an invisible wall with the Green Star.
- Green Star 2: After the Plessie section, the player will once again need the cat form to climb walls to reach the star.
- Green Star 3: Before the Warp Pipe leading to the Goal Pole, the player will need to use the cat form to use the Cloud Cannon, where the player will find the star in Coin Heaven.
In a room with rising water and giant spikes, stay to the far left and collect the stamp at the top of the room.